Ha! Well, tell that to my friend Diane!
Just kidding. (kind of...)
Actually, I know of quite a few ladies who have kept their weight down over the years simply by walking daily, so that's why I know it works. It was just encouraging to read a post by someone who not only controls her weight with walking, but has lost a significant amount with walking as her main exercise.
I agree with her that we have to make sure and push ourselves to walk more intensely as our bodies are able, and that's why I especially love Leslie Sansone's Walk At Home DVDs. Leslie pushes me sometimes when I just want to take it easy.
Walking is the exercise that just clicks with me and I'm so happy to once again hear someone say that it works.
p.s. I love step aerobics also...but I love being to workout at/near my home more - and it fits my budget better! :)